The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 08-26-2009, 11:16 PM   #26
ERASER5
Registered User
 
ERASER5's Avatar
 
Join Date: Jun 2006
Location: Indiana
Posts: 4,859
Re: eaton rear axle

And now you know why people dump their very strong Eaton rear ends. Getting parts is a big headache.
__________________
'70 GMC C1500 LWB
Power disc brakes. WooHoo!
Posi 6 Lug Dana 60
ERASER5 is offline   Reply With Quote
Old 08-27-2009, 12:38 PM   #27
SoCal71K20
Registered User
 
Join Date: Jan 2002
Location: Lemon Grove, California
Posts: 152
Re: eaton rear axle

Yeah, I thought there were enough of those old eatons to support replacement parts, guess not.
SoCal71K20 is offline   Reply With Quote
Old 08-27-2009, 04:12 PM   #28
Longhorn Man
its all about the +6 inches
 
Longhorn Man's Avatar
 
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
Re: eaton rear axle

they stopped making them in 72. There's hardly any on the road when you look at the big picture
Longhorn Man is offline   Reply With Quote
Old 08-29-2009, 01:48 AM   #29
vectorit
What?
 
vectorit's Avatar
 
Join Date: Jun 2007
Location: Southern California
Posts: 7,617
Re: eaton rear axle

Yea, they are a stout axle. But they are a dying breed, and after all my hassle of trying to find parts... I think if it breaks it will be time to just replace it with something more comon next time around.

Just doing a complete brake overhaul, has kept my burb on jackstands for the last month or so just trying to hunt down parts. It's been very frustrating for me these past few days, to just do something as routine as a brake overhaul. Granted I was missing these parts to begin with, and I am trying to make them right now.
__________________
Chris
1968 K20 Suburban
1972 K10 LWB PU
vectorit is offline   Reply With Quote
Old 08-29-2009, 02:38 AM   #30
capev86
Registered User
 
Join Date: May 2009
Location: Eliot, Maine
Posts: 1,314
Re: eaton rear axle

if i was going to go a different route than the corporate axle, i'd skip the dana and all the other ho hum alternatives and go right for a 14 bolt full floater from a 2000 or newer GM truck. 11.5 ring gear (older 14bff has a 10.5) and disc brakes that are much better suited to our trucks than some hodge podge type using an aftermarket bracket and a lame excuse for an e-brake (the brake should not be in the caliper.....just asking for trouble).
capev86 is offline   Reply With Quote
Old 08-29-2009, 02:48 AM   #31
ERASER5
Registered User
 
ERASER5's Avatar
 
Join Date: Jun 2006
Location: Indiana
Posts: 4,859
Re: eaton rear axle

From everything I have read about the Eatons, if you have brake trouble that is more than a simple brake job, go with disc brakes. The 14 bolt conversion parts fit the Eatons. Or replace the rear with a Dana or 14 bolt. Too bad really, the Eaton was a good design.
__________________
'70 GMC C1500 LWB
Power disc brakes. WooHoo!
Posi 6 Lug Dana 60
ERASER5 is offline   Reply With Quote
Old 09-26-2009, 10:06 PM   #32
davesanrn
Registered User
 
Join Date: Jan 2003
Location: Montana
Posts: 4
Re: eaton rear axle

I think these are great axles. I like the removable carrier, yet you can still pull the rear cover and take a look or change fluid. Got one in my stock 67 C-20 still going strong.
davesanrn is offline   Reply With Quote
Old 09-27-2009, 01:06 AM   #33
Longhorn Man
its all about the +6 inches
 
Longhorn Man's Avatar
 
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
Re: eaton rear axle

they are awesome rear ends... till you need parts, or more than a 4.10 gear.
Mine is getting tossed in favor of a 14 bolt
Longhorn Man is offline   Reply With Quote
Old 11-29-2010, 01:14 AM   #34
lmdangerous
Registered User
 
Join Date: Nov 2010
Location: Houston, MS
Posts: 184
Re: eaton rear axle

I have 5.14's from the HO72 in my 1951 3800 pickup ( 1ton) . Any body got a current line on the 3.90 ( aftermarket) supplier?? Anyone got 4.10 center section and need 5.14's ???. I can pull anything even with this 235 engine but 46 is about top speed without hurting it.I would like to be able to run road speed and not hurt it . Not really intrested in swapping for a 14 bolt, dana etc,
thanks LMD
lmdangerous is offline   Reply With Quote
Old 11-29-2010, 07:54 PM   #35
capev86
Registered User
 
Join Date: May 2009
Location: Eliot, Maine
Posts: 1,314
Re: eaton rear axle

i would have gone with the aftermarket 3.90 ratio if it was still available but it was convenient being able to just plug and play with a whole third member all set up to get from a 4.57 to a 4.10 in my 72 burb c20. that 10% improvement makes highway driving livable but i'm still wishing for an overdrive on long trips. if my truck had been a floor shift model instead of the 3 on the tree (that i want to keep) i would have gone for a more up to date trans.

in your case another option might be to invest in a modern 6 speed...you can get one with a mechanical clutch. the 6th gear is available in a couple super soft ratios. only issue would be the fact that the drive shaft rpm is still governed by the rear axle ratio (more vibration). but you'd have the best of both worlds and that little 235 would feel more like a 292!

3.73 x .7 (700r4) = 2.61

5.14 x .52 (6 spd) = 2.63
capev86 is offline   Reply With Quote
Old 11-29-2010, 08:22 PM   #36
thepenguin99
Registered User
 
Join Date: Mar 2004
Location: Millington TN
Posts: 435
Re: eaton rear axle

Resurrection round 2!
thepenguin99 is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 06:51 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com